Questions

A device which is used to convert light energy directly into electrical energy is called as photovoltaic cell or a solar cell.

Heliostats convert light energy into heat energy.

A thermocouple is a device for measuring temperature.

Various designations have been specified by the President for the different Union Territories:

(i) Chief Commissioner for Chandigarh

(ii) Administrator for

     (a) Lakshadweep and

     (b) Dadra and Nagar Haveil

(iii) Lieutenant Governor for 

    (a) Andaman and Nicobar Islands

    (b) Delhi

    (c) Daman and Diu and

    (d) Pandicherry

Metal Aluminium is present in chocolate wrappers.

Peggy Whitson on 24 April 2017 broke the record for most days spent in space (cumulatively) by a US astronaut. She broke the previous record set by Jeff Williams who had spent a total of 534 days in space.

– Whitson has been currently living and working aboard the International Space Station (ISS), for which she was launched in November 2016 using a Russian Soyuz capsule. At the time of her launch, she had already accumulated 377 total days in space.

– Her mission was recently extended for an additional three months. Now when she will return from ISS in September 2017, she would have accumulated more than 600 days in space.